Which of the following is NOT a method for landscape water conservation?

• A. Plant water requirement
• B. Irrigation inefficiencies
• C. Water management
• D. Plant pest control

Answer: (D)

The correct answer is that plant pest control is not a method for landscape water conservation.

To understand this, it is essential to recognize that plant pest control primarily focuses on managing unwanted organisms that can harm plants. While pest control can indirectly impact water conservation—such as by ensuring healthier plants that might need less water due to reduced stress—its primary goal is not to conserve water directly.

On the other hand, the other methods mentioned—considering plant water requirements, addressing irrigation inefficiencies, and implementing effective water management strategies—are all directly aimed at reducing the amount of water used in landscaping. Plant water requirements involve selecting species that are suited to the local climate and minimizing water use, while irrigation inefficiencies highlight the importance of optimizing watering systems to prevent waste. Lastly, water management encompasses practices designed to monitor, allocate, and conserve water in landscapes efficiently. Each of these methods directly contributes to the goal of conserving water resources in landscaping practices.